Aphex 207 Dual Channel Tube Mic Preamp. I haven't used it in a while. I cleaned it and I let the tube warm up for an hour before I checked it and recorded it working.I will leave the link at the bottom. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Preamps & Channel Strips". The seller is "silvestrreye0" and is located in this country: US. This item can be shipped to United States.